Hi Michelle, my suggestion is, maybe purchase a free standing cabinet. The space you are wanting to fill is a good size for standard cabinets. Bunnings kaboodle range with cabinet and door, or IKEA cabinets are just a couple of places you could look at. I'm sure there are other companies as well, that stock standard cupboards for this space. Maybe also google "pantry cupboards"

You can get a chippy in to enclose this with a door. It will look better than jamming a cabinet into it. Not a lot to the job, will be done in a few hours. If you put a cabinet in there you'll lose the power points. Much better to just put a door on it and continue to use the space as you are. They can install a couple of high shelves and leave the area around the power points clear for your vacuum and power point access.

Try a local handyman to fit some shelves and a door.